Improvement in feed mechanisms for file-cutting machines



' 2 Sheets--Sheet1. J. GARLAND.

Feed-Mechanism for F'ila-Gutting Machines. 57 33 PgtentedSep t'.21,1875.-

WITNESSES. INVENTOR.

MPETERS, PHUTO-LITNOGHAPHER, WASHINGTON. D C.

2Sheets--S heet2.

l. GARLAND. Feed-Mechanism for File-Cutting'Machines.- No. 167,833.' Patented Sept.21,1875.

WITNESSES. I INVENTOR.

N-FETERS, PNDTO'UTHOGRAPHER, WASHINGTON. I)v C- LTN'IrEDQISTATEs PATENT. OFFICE;

- JAMES GARLAND, on CENTRAL FALLS, RHODE ISLAND.

lM EBQVEMENT m FEED MECHANISMS FOR FILE-CUTTING MACHINES;

Specification forming partof Letters Patent No. 16i7,833, dated September 21, 1875 application filed August 13, 1875.

' To all whom it may concern for File-Cutting Machines; and I do hereby de-' clare that the following is a full, clear, and exact description of the same, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming a part of this specification.

Figure 1 is a front elevation of a file cutting machine, only such parts being shown as have special reference to my improved feed mechanism. Fig. 2 is a side view of the same.

Similar letters of reference indicate corresponding parts.

The object of this invention is to communicate the motion from the vertical reciprocating rod to the bed in which the file blank is held, by a simple, durable, and easily-adjustable mechanism, as directly as possible, so as to avoid the lost motion incident to the complicated mechanism now used, and without interfering with the free adjustment of the bed to any angle and slash required.

In the drawings, a a is the frame or standard of a file-cutting machine. b b are the bearings for the horizontal driving shaft. Connected with this shaft, by a crank or other equivalent device, is the rod 0, to which, by the revolution of thedriving-shaft, vertically reciprocating motion is imparted. To the lower end of the rod 0 the adjustable arm d is secured, having at its end a ball-and-socket jointed connection, e. f is a connecting rod secured to the ball-and-socket joints 0 and g. In place oftheseball-and-socket joints, universal joints or other flexible connections may be used. The arm h is secured to the rocking-shaft 1; by a set-screw, and can be adjusted at any point on the shaft c. To the end of the rock-shafti the crank it is secured, carrying the pawl m,

which is held in contact with the ratchetwheel a by a spring. 0 is the adjustable bed or trough into which the file-blank is secured. This trough or bed is hung in trunnions supported by the uprights p p, which are secured to the disk q, so that the bed or trough 0 may be set at any desired horizontal or vertical angle to producea file cut to any required angle orslash, the cutting-tookreciprocating in fixed vertical slides.

In file-cutting machines as at present constructed, such as the Bernot machine, the bed or trough 0 is adjusted to produce the desired angles and slashes to the teeth of different kinds of files. To allow this free motion of the bed, the motion to operate the feeding device on the bed is transmitted from the vertical reciprocating rod 0 to the feeding device The complicated chain of rods and levers must be protected from dust and impurities. They are placed mostly within the frame of the machine, and the constant repairs and adjustments required necessitate the removal of most of the parts of the machine, which is laborious and requires much time.

My feed mechanism, on the contrary, is simple in construction, adjustable to all the angles and slashes required. All the parts are in sight, and can be readily adjusted, and if necessary repaired, without the removal of any other part of the machine. It consists of few pieces and few wearing parts, and not liable to get out of order.

To enable others skilled in the art to make and use my invention, I will .more fully describe its operation.

When the rod 0 is secured by a crank or I equivalent device to the driving-shaft, the rotative motion of the shaft is converted into the reciprocating-motion of the rod 0. This motion is communicated through the arm (I and connecting rod f to the arm h, which, being secured to the shaft 13, imparts a rocking morock-shaft z, and. the, ball-and socket connection with the reciprocating rod 0, substantially as and for the purpose specified.

2. The combination, with theadjustable bed i of a file-cutting machine, of a feeding device,

operated by the reciprocating rod '0 and the intermediate adjustable mechanism, substantially as described, bywhichthe motion is transmitted directly, substantially as and for the purpose set forth.

JAMESGARLAND.

Witnesses:

J OSEPH A. MILLER, H. (LPIERQE. 

